Improvement in sawing-machines



@anni (time JAMEs n. LAMBERT, sa., AND JAMES je. LAMBERT, JE., 0E EooKVILLE,

* INDiANA. I

Letters Patent No. 109,426; dated November 22,1870.

l IMPRQVEMENT iN sAwlNe-MACHINES.

had to the accompanying drawing forming pui-t of this specification, in which- Figure 1 represents a plan or top view of our i|n' proved sawing-machine.

`Figure 2 is aside view of, the saine.

Similar letters of reference indicate corresponding parts.

lhis invention relates to a new sawing-machine, whichfis so constructed that the saw will be properly guided and not allowed to whip, while it may clear itself of dust without choking.

The ma'chine is supported by a frame, A, .which rests on three wheels, B B, and C, the latter being the front wheel while theother two are in line'.

' The benches 1) I), which project from the frame A for supportingfthe crank-shaft E, are set so as to hold the said shaft nearer the outer than the inner, end of the frame. 'Thereby the weight of the machine will be properly balanced, as the shaft E, with the ily' wheel a, &c., is ou one side of the frame, and thesaw, gu'de, che., on theJother. The jack or frame is thereby also prevented fromv tilting 'while it is beingrolled along side of a log.

F is the drag-saw. l

1t is rigidly connected with a forked frame, G, which, with its two arms, enters two tubular guides, H H.

rlhe latter are at their inner ends pivoted to the benches D.

`A pitman, I, extends from a crank-pin o'f the shaft E to the front end of the frame or guide G.

The two outer ends of the tubes H may be connectedV or steadied by a projecting yoke, l), which will not interfere with the motion of the pitman.

, J is a yoke, supported by the frame A so as to straddle the tubes H. It has a hole to permit the supporting of said tubes by a pin put through the same.

L is a dog, pivoted to a projecting frame or plate, M, which is properly held to and braced by the frame A, and which has a notched or perforated segment, c, for holding said dog at any desired elevation.

The dog serves to lock the fra-me or jack to the log while the saw isv cutting the lat-ter, and is, after a cut. released from the log.

The guide is then elevated to clear the saw from the log, and the whole frame moved along on the wheels opposite another part ot the log to be cut. Then it is again anchored to the log.

The 'pitman being between the guides serves to steady the -saw and prevent the same from whipping.

Having thus described our invention,

We claim as new and desire to secure by Letters Patent- 1. The tubular guides l1 H, combined with the forked guide G, saw F, and pitman I, substantially as herein shown and described.

' 2. The bifurcated handle G G fixedly attached to V the saw, and the tubulaiguides H H pivoted at their back ends, combined with a crauk-pitmau pivoted at each end, as described.

, JAMES It. LAMBERT, SR.

i JAMES R. LAMBERT, JR.

Witnesses:

S. F. MAXWELL, S. O. PRATT. 

